基本规格
名称/型号 RR11 硬件方案 SoC: MS430, FM radio: SI4831, analog sound effect and amp: ZHUONING DDB AS100 custom chip
颜色 Titanium gold/Black/Red/Silver/Blue/Pink 尺寸 About 83.2x39.4x13mm
Frequency Modulation (FM) FM1: 87~108MHz 重量 About 46g
FM2: 76~90MHz 音量控制 音量旋钮
FM3: 64~87MHz 自适应阻抗 8~100Ω
—状态指示灯。 Stereo indicator, frequency pointer, radio indicator, battery level indicator Antenna Earphones JF1 work as an antenna
按键与接口
拨动开关 FM slide switch*1, Mode slide switch*1, Sound effect slide switch*1 USB 端口 Type-C USB (charging port, analog input)
耳机输出 标准3.5mm端口 旋钮 Power on/off/Volume knob, FM knob
电源参数
电源 DC 5V/≥1A 充电时间 About 2h
电池寿命和测试条件
FM mode 3.5mm headphone out: ≥8.5h
音频输入 FM 负载 32Ω
音量级别 40mV out 播放曲目和格式 MP3 44.1kHz/16bit
AMP mode 3.5mmheadphone out: ≥17.5h
音频输入 AMP 负载 32Ω
音量级别 40mV out 播放曲目和格式 MP3 44.1kHz/16bit
基本参数
Performance and parameters of FM mode
输出幅度 L+R≥4mV+4mV THD+N ＜0.3%
Noise-limited sensitivity ≤15dBuV (S/N=30dB ) SNR ≥45dB (A-weighted)
Performance and parameters of AMP mode (3.5mm out)
输出功率 L+R≥30mW+30mW (16Ω, THD+N＜1%) 输出阻抗 ＜ 1Ω
L+R≥40mW+40mW (32Ω, THD+N＜1%) 串扰 ≥65dB
L+R≥5mW +5mW (300Ω, THD+N＜1%) 输出幅度 1.1Vrms
THD+N ＜0.04% (1kHz/-24dB@32Ω) SNR ≥100dB (A-weighted)
频率响应 20Hz~95kHz: attenuation＜3dB 本底噪声 ＜10uV (A-weighted)
20Hz~20kHz: attenuation＜0.1dB 峰值输出电压 3Vpp
Input sensitivity 0.9V